I think that is fantastic!! My father was an avid book reader/addict and I inherited it from him. I think Pratchett is Fantastic for teens to read, I am not all that fond of the Bromiliad trilogy and Johnny and the Dead is ok, but not really my cup of tea. His books make The World According to Garp seem extremely tame. I simply do everything I can to get kids, boys especially, interested in reading his work, it can lead to *gasp* intelligent more or less well-read teens.
I have quoted a couple of paragraphs from two different books on our paintball website, on the "About Us" page. It has actually gotten good response from parents and kids, well, except for the kids/young men who call it "Too Wordy".
Doh, p.s. Welcome to the site!! Love the name, BB King and Buddy Guy Rule!!